On the Nucleon Renormalization in Many Nucleon Problems Due to Pionic Degrees of Freedom+

نویسنده

  • Peter U. Sauer
چکیده

Conceptual problems of unified two-nucleon force models are discussed. The force models are based on the pion-nucleon vertex and attempt a description of the nucleon-nucleon interaction below and above pion threshold. The conceptual problems arise from the nucleon renormalization due to pionic degress of freedom. Keeping channels with a single pion only no renormalization procedure can be given which is consistent in the onenucleon and in the many-nucleon systems. The medium dependence of the one-pion exchange potential is illustrated. [NUCLEAR REACTIONS Nucleon renormalization in coupled NNnNN equations, inconsistencies of renormalization between oneand A-nucleon systems, energy dependence of one-pion exchange potential]

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تاریخ انتشار 1999